You can borrow mine. Well, it's not mine, but somewhere around here - he said, lining up to rub a little salt in ;) - I have my (ahem) father's slide rule. And he had one of the deluxe circular jobs, too. Bet you're jealous now, eh?
Yes, but I have one with the special cat's whisker slide. :)
Don't get rid of it (not that you would since it was your fathers). Those are pretty rare.